The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2026
Filed:
Oct. 08, 2021
Coway Co., Ltd., Gongju-si, KR;
Young Kook Kim, Gongju-si, KR;
Kyo Eon Oh, Gongju-si, KR;
Yeon Soo Seong, Gongju-si, KR;
Eui Soon Lee, Gongju-si, KR;
COWAY CO., LTD., Gongju-si, KR;
Abstract
Disclosed are a power conversion device for an electric range, and a control method thereof. The control method according to one embodiment of the present invention comprises: receiving a user's selection of the number of outputs through an interface unit, and determining the resonance frequency from the number of outputs and an object to be heated; comparing a rectified voltage and the voltage at both ends of a switching element, and generating a switching timing reference signal; and determining a delay time according to the difference between the resonance frequency and the frequency of the switching timing reference signal, and outputting a switching control signal that turns on after the delay time has passed since the falling edge of the switching timing reference signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile